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Articles 1 - 30 of 33

Full-Text Articles in Sports Medicine

Acute Simultaneous Medial And Lateral Ankle Sprain In A Collegiate Football Player: A Case Report, Ian Matlack Mar 2024

Acute Simultaneous Medial And Lateral Ankle Sprain In A Collegiate Football Player: A Case Report, Ian Matlack

UNO Student Research and Creative Activity Fair

The purpose of this case report is to present a twenty-year-old African American male with a complex ankle injury. During a collegiate football game, the athlete injured his left ankle, damaging his deltoid ligament complex, and lateral ankle complex, causing several bone bruises and tearing his peroneal retinaculum. With surgery being declined, standard rehabilitation protocols of POLICE for initial management of inflammation, strengthening, and ROM exercises were conducted. Manual therapies consisting of milking massage, scraping, and joint mobilizations were added to aid in pain and edema control. Comparative case studies suggest that the athlete may have experienced a subluxation of …


Anterior Cruciate Ligament Hybrid Remnant Preservation Reconstruction Demonstrates Similar Outcomes As Traditional Reconstruction After 6 Months: A Randomized Control Trial, Joshua P. Castle, Eleftherios L. Halkias, Brittaney Pratt, Ashley Frei, Matthew A. Gasparro, Vasilios Moutzouros Mar 2024

Anterior Cruciate Ligament Hybrid Remnant Preservation Reconstruction Demonstrates Similar Outcomes As Traditional Reconstruction After 6 Months: A Randomized Control Trial, Joshua P. Castle, Eleftherios L. Halkias, Brittaney Pratt, Ashley Frei, Matthew A. Gasparro, Vasilios Moutzouros

Medical Student Research Symposium

Background

The anterior cruciate ligament (ACL) is often debrided during reconstruction (ACLR) to improve visualization. However, remnant ACL tissue contains nerve fibers and including remnant tissue in ACLR could provide benefit. Therefore, a technique was developed that preserves the tibial remnant and incorporates it into ACLR: Hybrid Remnant Preservation Reconstruction (HRPR) ACLR. This study compares HRPR-ACLR to traditional reconstruction by comparing patient reported outcomes and complications.

Methods

Patients presenting to one surgeon's clinic with an ACL injury are screened. Exclusion criteria are patient age<14 years, multi-ligament injury, chronic tears, and revision ACLR. Patients are consented and randomized to HRPR or traditional ACLR. Demographics, patient-reported outcomes, range of motion (ROM) and complications were collected.

Results

Thirty-three patients were included, 20 HRPR and 13 controls. No demographic differences were noted. PROMIS-PF, …


Influences Of Athletic Trainers' Return-To-Activity Assessments For Patients With An Ankle Sprain, Ryan S. Mccann, Cailee E. Welch Bacon, Ashley M. B. Suttmiller, Phillip A. Gribble, Julie M. Cavallario Jan 2024

Influences Of Athletic Trainers' Return-To-Activity Assessments For Patients With An Ankle Sprain, Ryan S. Mccann, Cailee E. Welch Bacon, Ashley M. B. Suttmiller, Phillip A. Gribble, Julie M. Cavallario

Rehabilitation Sciences Faculty Publications

Context: Athletic trainers (ATs) inconsistently apply rehabilitation-oriented assessments (ROASTs) when deciding return-to-activity readiness for patients with an ankle sprain. Facilitators and barriers that are most influential to ATs' assessment selection remain unknown.

Objective: To examine facilitators of and barriers to ATs' selection of outcome assessments when determining return-to-activity readiness for patients with an ankle sprain.

Design: Cross-sectional study.

Setting: Online survey.

Patients or other participants: We sent an online survey to 10 000 clinically practicing ATs. The survey was accessed by 676 individuals, of whom 574 submitted responses (85% completion rate), and 541 respondents met the inclusion criteria.

Main outcome …


Occurrence And Trends Of Musculoskeletal Pain Among Ski Instructors, Denis Causevic, Erol Kovacevic, Semir Masic, Seth Spicer, Ahmed Gawash May 2023

Occurrence And Trends Of Musculoskeletal Pain Among Ski Instructors, Denis Causevic, Erol Kovacevic, Semir Masic, Seth Spicer, Ahmed Gawash

Rowan-Virtua Research Day

Musculoskeletal disorders (MSD) are incredibly common and are often related to work load. For any occupational or public health intervention, injury prevention is preferred to injury treatment. Occupational health and injury prevention research has the potential to help mitigate MSD in the workplace. The aim of this study was to determine how the work demands of ski instructors may affect the health of their musculoskeletal system.

Material and Methods

A cross-sectional study involved the participation of 87 ski instructors (age = 34.61 ±10.67) in Bosnia and Herzegovina (ATUS in Bosnia and Herzegovina). Observed variables were the prevalence of MSD measured …


Comparison Of Patient Outcomes In Female Patients Undergoing Slap Repair Or Biceps Tenodesis For The Treatment Of Slap Lesions, Adeeb Hanna, Matthew Wallingford, William Johns, John Sonner, Emma Johnson, Sommer Hammoud, Brandon Erickson, Steven Cohen, Michael G. Ciccotti, Meghan Bishop, Meghan Bishop May 2023

Comparison Of Patient Outcomes In Female Patients Undergoing Slap Repair Or Biceps Tenodesis For The Treatment Of Slap Lesions, Adeeb Hanna, Matthew Wallingford, William Johns, John Sonner, Emma Johnson, Sommer Hammoud, Brandon Erickson, Steven Cohen, Michael G. Ciccotti, Meghan Bishop, Meghan Bishop

Rowan-Virtua Research Day

Background: There is no consensus on whether SLAP repair (SR) or biceps tenodesis (BT) yields superior long-term outcomes in managing superior labrum anterior to posterior (SLAP) tears. No previous study has examined outcomes of these procedures in female patients.

Hypothesis/Purpose: The purpose of this study was to compare outcomes following SR and BT for SLAP tears in females. The authors hypothesized there would be no difference in outcomes between patients who underwent SR or BT.

Study Design: Retrospective Cohort (level III)

Methods: Female patients who underwent SR or BT for treatment of SLAP tears between 1/1/2014 and 9/1/2019 were retrospectively …


Amenorrhea And Stress Fractures In Female New Jersey Division Iii Collegiate Runners: An Opportunity For Increased Health Education, Emily Forester, Tara Pellegrino May 2023

Amenorrhea And Stress Fractures In Female New Jersey Division Iii Collegiate Runners: An Opportunity For Increased Health Education, Emily Forester, Tara Pellegrino

Rowan-Virtua Research Day

Background: In the National Collegiate Athletic Association (NCAA), 9.1% of the injuries reported by Women’s cross country athletes between 2014-2019 were fractures. Although excessive exercise is a major contributor to the development of amenorrhea, there are currently no studies on the association between amenorrhea and stress fractures in NJ NCAA Division III Women’s cross country or track athletes. This study aims to determine if there is an association between incidence of amenorrhea and subsequent occurrence of stress fractures among this population.

Methods: This is a survey based study. Participants must be female athletes over the age of 18 who currently …


Impact Of Draft Order On Stress Sonography Of The Ulnar Collateral Ligament Of The Elbow In Professional Baseball Pitchers: An 18-Year Study, Adeeb Hanna, John Sonnier, Brian Fliegel, Matthew Sherman, Michael Ciccotti, Robert Jack, Steven Cohen May 2023

Impact Of Draft Order On Stress Sonography Of The Ulnar Collateral Ligament Of The Elbow In Professional Baseball Pitchers: An 18-Year Study, Adeeb Hanna, John Sonnier, Brian Fliegel, Matthew Sherman, Michael Ciccotti, Robert Jack, Steven Cohen

Rowan-Virtua Research Day

Background: The MLB draft is a common route for players to enter professional baseball in the United States. Individuals taken in earlier rounds are typically higher-performing players. When looking at pitchers specifically, higher performance at the amateur level may be associated with increased frequency of adaptive change in the throwing elbow.

Purpose/Hypothesis: To determine if players taken in earlier rounds of the MLB draft have a greater frequency or extent of pathological change in the elbow, as measured by dynamic stress ultrasound.

Study Design: Retrospective Cohort Study Methods: Dynamic stress ultrasounds (SUS) were performed over an 18-year period on the …


Adaptive Changes Of The Ulnar Collateral Ligament Of Professional Baseball From Different Climates Over Multiple Seasons: An 18-Year Study, Adeeb Hanna, Brian Fliegel, John Sonnier, Matthew Sherman, Michael Ciccotti, Robert Jack, Steven Cohen May 2023

Adaptive Changes Of The Ulnar Collateral Ligament Of Professional Baseball From Different Climates Over Multiple Seasons: An 18-Year Study, Adeeb Hanna, Brian Fliegel, John Sonnier, Matthew Sherman, Michael Ciccotti, Robert Jack, Steven Cohen

Rowan-Virtua Research Day

Background: The ulnar collateral ligament (UCL) is put under high levels of stress through the overhead throwing motion typical of professional baseball pitchers. In response to repetitive stress the UCL undergoes adaptive changes including thickening of the ligament and increased joint laxity under valgus stress. Studies examining the adaptive changes in the elbows of professional pitchers over multiple seasons are limited. Investigations such as this one offer insight into the changes in the UCL of professional pitchers over multiple years of professional play as well as the risk for injuries that may be associated with these changes.

Purpose/Hypothesis: The purpose …


The Top 50 Most Cited Articles On The Medial Patellofemoral Ligament (Mpfl): A Bibliometric Analysis, Varag Abed, Alex Duvall, Jonathan D. Rexroth, Alyssa Goodwin, Joseph Liu, Austin Stone Mar 2023

The Top 50 Most Cited Articles On The Medial Patellofemoral Ligament (Mpfl): A Bibliometric Analysis, Varag Abed, Alex Duvall, Jonathan D. Rexroth, Alyssa Goodwin, Joseph Liu, Austin Stone

Medical Student Research Symposium

Objectives: To determine which original articles on the topic of the medial patellofemoral ligament (MPFL) have been cited the most in the literature utilizing a bibliometric approach. Secondarily, to determine temporal trends between article types.

Methods: Articles on the topic of the MPFL were identified by utilizing the Web of Science Database. The search yielded 1,596 results and the top 50 cited original articles were collected for further analysis. The following information was gathered for all included articles: title, first author's name, journal name, year of publication, impact factor of the journal in 2021, total number of citations of the …


Do Lower Extremity Injuries Of Nfl Players Affect Their Yearly Income?, Abdullah Sahyouni, Robert De La Torre, Gautham Pavar, Kinan Sawar, Yasmeen Alcodray, Bohdan Matsko, Justin Bennie, Nicole Xu, Harika Bollineni Mar 2023

Do Lower Extremity Injuries Of Nfl Players Affect Their Yearly Income?, Abdullah Sahyouni, Robert De La Torre, Gautham Pavar, Kinan Sawar, Yasmeen Alcodray, Bohdan Matsko, Justin Bennie, Nicole Xu, Harika Bollineni

Medical Student Research Symposium

Introduction: Injuries are arguably the most daunting career setbacks professional sports players have to face. To better understand the drawbacks of sports injuries, we decided to examine players’ annual income before and after sports injuries. Income is arguably the most important metric of success for professional athletes. To make the study more relevant for the US, we collected data on one of the most viewed professional sports leagues in the country: the National Football League (NFL).

Methods: We examined the NFL’s weekly injury reports for seasons from 2016 to 2020, and recorded players with lower extremity injuries (LEI) (Hamstring, Calves, …


Does Prehabilitation Prior To Ulnar Collateral Ligament Surgery Affect Return To Sport Rate Or Time In Baseball Players With Partial Ucl Tears?, Joshua Spada, Kourtney Snigar, Ryan W. Paul, Usman Zareef, Anya Hall, Brandon J. Erickson, Michael G. Ciccotti, Stephen J. Thomas May 2022

Does Prehabilitation Prior To Ulnar Collateral Ligament Surgery Affect Return To Sport Rate Or Time In Baseball Players With Partial Ucl Tears?, Joshua Spada, Kourtney Snigar, Ryan W. Paul, Usman Zareef, Anya Hall, Brandon J. Erickson, Michael G. Ciccotti, Stephen J. Thomas

Rowan-Virtua Research Day

Those who suffer a partial thickness ulnar collateral ligament (UCL) tear often undergo a period of nonoperative management including physical therapy rehabilitation. This treatment is aimed at optimizing range of motion (ROM) and strengthening the supporting structures around the elbow to help offload the UCL.

Unfortunately, some of these patients fail nonoperative management and require surgical intervention. This creates a unique set of patients who essentially underwent “prehabilitation” prior to their UCL surgery. Prehabilitation is considered a period of structured physical therapy rehabilitation aimed at strengthening structures surrounding an injured tendon or ligament, to allow for dissipation of stress away …


The Effect Of Concussion History On Lower Extremity Injury Risk In College Athletes: A Systematic Review And Meta Analysis, Vanessa Ramirez, Ryan Mccann, Eric Schussler, Jessica Martinez Jan 2022

The Effect Of Concussion History On Lower Extremity Injury Risk In College Athletes: A Systematic Review And Meta Analysis, Vanessa Ramirez, Ryan Mccann, Eric Schussler, Jessica Martinez

Rehabilitation Sciences Faculty Publications

INTRODUCTION: Collegiate athletes who suffer a concussion may possess prolonged impairments even after clearance for return-to-participation, which may place them at an increased risk of lower extremity injury.

OBJECTIVE: To conduct a systematic review and meta-analysis of studies examining risk of lower extremity musculoskeletal injury following a concussion in collegiate athletes.

METHODS: A literature search was performed using the following databases: PubMed, CINAHL, SPORTDiscus. The following search terms were used to identify relevant articles, ["concussion" OR "brain injury" OR "mild traumatic brain injury" OR "mTBI"] AND ["lower extremity injury" OR "musculoskeletal injury"]. Articles were included if they were published between …


Visuomotor Adaptation During Asymmetric Walking, Charles Napoli Oct 2021

Visuomotor Adaptation During Asymmetric Walking, Charles Napoli

Masters Theses

Necessary for effective ambulation, head stability affords optimal conditions for the perception of visual information during dynamic tasks. This maintenance of head-in-space equilibrium is achieved, in part, by the attenuation of the high frequency impact shock resulting from ground contact. While a great deal of experimentation has been done on the matter during steady state locomotion, little is known about how head stability or dynamic visual acuity is maintained during asymmetric walking.

In this study, fifteen participants were instructed to walk on a split-belt treadmill for ten minutes while verbally reporting the orientation of a randomized Landolt-C optotype that was …


Localization Of Hand And Wrist Anatomic Structures Among Physical Medicine And Rehabilitation Residents: Implication Of Ultrasonography In Palpation Skill Verification, Se Won Lee, Phuong Uyen Le, Craig Van Dien, Stefanie Lai, Eric Aguila Apr 2021

Localization Of Hand And Wrist Anatomic Structures Among Physical Medicine And Rehabilitation Residents: Implication Of Ultrasonography In Palpation Skill Verification, Se Won Lee, Phuong Uyen Le, Craig Van Dien, Stefanie Lai, Eric Aguila

HCA Healthcare Journal of Medicine

Objective

The objective of this cross-sectional study is to evaluate the accuracy of physical medicine and rehabilitation (PM&R) resident palpation skills of hand and wrist joint and soft tissue structures using ultrasonography (US) verification.

Methods

PM&R residents palpated hand and wrist anatomic structures in an outpatient musculoskeletal (MSK) clinic. Once the presumed structures were localized, residents marked a one centimeter size circle on the overlying skin with an ink marker. The accuracy of the circle over the joint line and soft tissue structures was verified using US.

Results

Overall palpation accuracy for 16 joint line and soft tissue structures was …


Assessment Of Landing Biomechanics And Rehabilitation After Anterior Cruciate Ligament Reconstruction, Sheila S. Gagnon Dec 2020

Assessment Of Landing Biomechanics And Rehabilitation After Anterior Cruciate Ligament Reconstruction, Sheila S. Gagnon

Electronic Thesis and Dissertation Repository

Aberrant landing biomechanics increase the risk of anterior cruciate ligament (ACL) injury and are a focus of rehabilitation after ACL reconstruction. The purpose of the present thesis was to develop and evaluate methods of assessing landing mechanics and investigate the effects of different rehabilitation strategies after ACL reconstruction. Three studies were conducted. The first study used a Delphi process to develop the content of a Clinician-Rated Drop Vertical Jump Scale to evaluate jump landing mechanics during rehabilitation after ACL reconstruction. Twenty experts participated in four rounds of questioning, resulting in 92% agreement for knee valgus collapse, lateral trunk lean, insufficient …


Oral Contraceptives As Possible Acl Injury Prevention Method, Haley Schweizer Jan 2020

Oral Contraceptives As Possible Acl Injury Prevention Method, Haley Schweizer

Capstone Showcase

ABSTRACT

Introduction: Anterior Cruciate Ligament (ACL) injuries are an upsetting setback for many athletes that require a long and costly recovery process. The injury rates are four times greater in women than men. Preventative measures that help to prevent ACL injuries are limited to stretching and strengthening. Therefore, this review aims to investigate if oral contraceptive [I] usage provides a possible new avenue for prevention of ACL injury [O] in young female athletes (ages 18-30) [P] compared to those that do not take oral contraceptives [C].

Methods: A literature review was performed though PubMed, Google Scholar, SCOPUS Database, and ClinicalKey …


The Role Of Neck Musculature In Traumatic Brain Injuries In Older Adults: Implications From Sports Medicine, Tyler A. Wood, Steven Morrison, Jacob J. Sosnoff Jan 2019

The Role Of Neck Musculature In Traumatic Brain Injuries In Older Adults: Implications From Sports Medicine, Tyler A. Wood, Steven Morrison, Jacob J. Sosnoff

Rehabilitation Sciences Faculty Publications

Traumatic brain injuries (TBIs) are common and serious injuries to older adults. The majority of TBIs in older adults are sustained when the head impacts the ground or other surface during a fall. While several non-modifiable risk factors have been identified for fall-related TBIs in older adults, there still remains a dearth of knowledge surrounding modifiable risk factors. Thus, this significant knowledge gap warrants an investigation into research across disciplines. The sports medicine literature has examined several modifiable risk factors to prevent a mild form of TBI known as concussion. While this research has identified several risk factors, one particular …


Femoroacetabular Impingement As A Complication Of Acetabular Fracture Fixation, David A. Zuelzer, Christopher B. Hayes, Raymond D. Wright, Stephen T. Duncan Dec 2018

Femoroacetabular Impingement As A Complication Of Acetabular Fracture Fixation, David A. Zuelzer, Christopher B. Hayes, Raymond D. Wright, Stephen T. Duncan

Orthopaedic Surgery and Sports Medicine Faculty Publications

Case

We present the case of a thirteen-year-old female who sustained a posterior wall acetabular fracture dislocation. She underwent urgent closed reduction and subsequent uncomplicated open reduction and internal fixation. Post reduction computed tomography demonstrated a concentrically reduced hip joint with no evidence of femoroacetabular impingement (FAI). She subsequently healed her fracture and returned to running activities; however, one year later presented with aching pain in her thigh. Radiographs demonstrated the development of a large osseous prominence on her anterolateral femoral neck consistent with femoroacetabular impingement. Based on these findings she was evaluated by a hip preservation specialist. She subsequently …


Examining Injury Data Reporting Practices Among Wildland Firefighters, Erin M. Boggs Jan 2018

Examining Injury Data Reporting Practices Among Wildland Firefighters, Erin M. Boggs

Graduate Student Theses, Dissertations, & Professional Papers

Wildland Firefighter (WLFF) Crews lack an injury surveillance program to collect information on non-traumatic and traumatic injuries. Tactical athletes including: police, military and structural firefighters all have a variety of collection systems in place for injury data collection. The lack of injury data prevents WLFF crews from identifying high-risk environments, implementing injury prevention programs, and improving the overall quality of care on the job. Over the last several decades the recent rise in wildfire occurrences and wildfire suppression costs creates a need for healthy and strong individuals in the field. The cost of firefighter salaries and medical care can be …


Biomechanical Testing Of An Exercise For Strengthening The Proximal Femur., Alyssa Osbourne Aug 2017

Biomechanical Testing Of An Exercise For Strengthening The Proximal Femur., Alyssa Osbourne

Electronic Theses and Dissertations

Based on the principles of cutting edge bone remodeling research, a unique therapeutic exercise device was designed specifically to improve bone quality at the most critical location of the proximal femur prone to fracture: the superior-lateral femoral neck where the fracture first initiates during a fall. The exercise/device is intended to work by inducing enough strain in the bone to stimulate the body’s natural bone remodeling mechanisms to increase bone density in the proximal femur and consequently prevent a fracture from arising if a fall to the side does occur.

In order to test the proposed exercise, experiments simulating the …


The Concurrent Use Of Lumbar Total Disc Arthroplasty And Anterior Lumbar Interbody Fusion: The Lumbar Hybrid Procedure For The Treatment Of Multi-Level Symptomatic Degenerative Disc Disease A Prospective Study, Matthew Scott-Young, Laurence Mcentee, Ben Schram, Evelyne Rathbone, Wayne Hing, David Nielsen Jun 2017

The Concurrent Use Of Lumbar Total Disc Arthroplasty And Anterior Lumbar Interbody Fusion: The Lumbar Hybrid Procedure For The Treatment Of Multi-Level Symptomatic Degenerative Disc Disease A Prospective Study, Matthew Scott-Young, Laurence Mcentee, Ben Schram, Evelyne Rathbone, Wayne Hing, David Nielsen

Wayne Hing

STUDY DESIGN: A prospective study. OBJECTIVE: The aim of this paper is to evaluate clinical and patient outcomes post combined Total Disc Arthroplasty (TDA) and Anterior Lumbar Interbody Fusion (ALIF), known as hybrid surgery for the treatment of multi-level symptomatic degenerative disc disease (DDD). SUMMARY OF BACKGROUND DATA: Class I studies comparing the treatment of one level lumbar DDD with TDA and ALIF have confirmed the effectiveness of those treatments through clinical and patient outcomes. While the success of single level disease is well documented, the evidence relating to the treatment of multi-level DDD with these modalities is emerging. With …


The Concurrent Use Of Lumbar Total Disc Arthroplasty And Anterior Lumbar Interbody Fusion: The Lumbar Hybrid Procedure For The Treatment Of Multi-Level Symptomatic Degenerative Disc Disease A Prospective Study, Matthew Scott-Young, Laurence Mcentee, Ben Schram, Evelyne Rathbone, Wayne Hing, David Nielsen Jun 2017

The Concurrent Use Of Lumbar Total Disc Arthroplasty And Anterior Lumbar Interbody Fusion: The Lumbar Hybrid Procedure For The Treatment Of Multi-Level Symptomatic Degenerative Disc Disease A Prospective Study, Matthew Scott-Young, Laurence Mcentee, Ben Schram, Evelyne Rathbone, Wayne Hing, David Nielsen

Ben Schram

STUDY DESIGN: A prospective study. OBJECTIVE: The aim of this paper is to evaluate clinical and patient outcomes post combined Total Disc Arthroplasty (TDA) and Anterior Lumbar Interbody Fusion (ALIF), known as hybrid surgery for the treatment of multi-level symptomatic degenerative disc disease (DDD). SUMMARY OF BACKGROUND DATA: Class I studies comparing the treatment of one level lumbar DDD with TDA and ALIF have confirmed the effectiveness of those treatments through clinical and patient outcomes. While the success of single level disease is well documented, the evidence relating to the treatment of multi-level DDD with these modalities is emerging. With …


Perceptions Of Ncaa Division I Baseball Pitchers On Treatment Modalities For Pitching Arm Health, Thomas Williams May 2017

Perceptions Of Ncaa Division I Baseball Pitchers On Treatment Modalities For Pitching Arm Health, Thomas Williams

Graduate Theses

Throwing athletes of all sports have similarities, even if the sport itself is very different. Throwing an object creates a great amount of stress on the body, particularly at the shoulder and the elbow. A baseball pitcher should train and compete in all three planes of movement-sagittal, frontal and transverse. Training for throwing athletes has two main goals: to increase throwing power and to reduce throwing injuries. Analyzing training habits of a throwing athlete includes an understanding of the modalities they perform in order to prevent potential injuries from occurring. Baseball pitchers are extremely susceptible to throwing injuries, and must …


Sports Injury Prevention In Danbury, Ct, Cori Polonski Jan 2017

Sports Injury Prevention In Danbury, Ct, Cori Polonski

Family Medicine Clerkship Student Projects

Sports Injuries, especially overuse injuries, cause a significant amount of morbidity and public health cost, especially for young athletes. Importantly, many of these injuries can be prevented with proper training and some novel approaches to warm-up and training. To address this concern, I worked with Orthopedic Specialists of CT and the athletic trainers at Danbury High School to come up with some educational materials for patients on effective ways to prevent sports medicine injuries.


Using Platelet-Rich Plasma To Reverse The Effects Of Tendinopathy And Prevent Tendon Re-Rupture After Surgery In Athletes: The Search For A Standardized Protocol, Shiv Patel Jan 2016

Using Platelet-Rich Plasma To Reverse The Effects Of Tendinopathy And Prevent Tendon Re-Rupture After Surgery In Athletes: The Search For A Standardized Protocol, Shiv Patel

Auctus: The Journal of Undergraduate Research and Creative Scholarship

30-50% of all lesions amateur and professional sports players will experience during activity are related to the tendon. Moreover, the incidence of tendinopathy, a precursor to tendon rupture, is much higher in both of these groups due to excessive loading of tendons during physical activity, insufficient rest afterwards and certain antibiotic use. The tendon anatomically has both a low blood supply and a low cell turnover rate, which contribute to the relative ease by which an athlete can develop tendinopathy. Chronic tendinopathy has very few high-success treatments but in recent years, platelet-rich plasma (PRP), a treatment in which platelets are …


Influence Of Tendon Tears On Ultrasound Echo Intensity In Response To Loading, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby Jan 2014

Influence Of Tendon Tears On Ultrasound Echo Intensity In Response To Loading, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Acoustoelastic (AE) ultrasound image analysis is a promising non-invasive approach that uses load-dependent echo intensity changes to characterize stiffness of tendinous tissue. The purpose of this study was to investigate whether AE can detect localized changes in tendon stiffness due to partial and full-thickness tendon tears. Ovine infraspinatus tendons with different levels of damage (Intact, 33%, 66% and full thickness cuts initiated on the articular and bursal sides) were cyclically loaded in a mechanical testing system while cine ultrasound images were recorded. The load-induced changes in echo intensity on the bursal and articular side of the tendon were determined. Consistent …


Interleukin-1 Receptor Antagonist Modulates Inflammation And Scarring After Ligament Injury, Connie S. Chamberlain, Ellen M. Leiferman, Kayt E. Frisch, Sarah E. Duenwald-Kuehl, Stacey L. Brickson, William L. Murphy, Georffrey S. Baer, Ray Vanderby Jan 2014

Interleukin-1 Receptor Antagonist Modulates Inflammation And Scarring After Ligament Injury, Connie S. Chamberlain, Ellen M. Leiferman, Kayt E. Frisch, Sarah E. Duenwald-Kuehl, Stacey L. Brickson, William L. Murphy, Georffrey S. Baer, Ray Vanderby

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Ligaments have limited regenerative potential and as a consequence, repair is protracted and results in a mechanically inferior tissue more scar-like than native ligament. We previously reported that a single injection of interleukin-1 receptor antagonist (IL-1Ra) delivered at the time of injury, decreased the number of M2 macrophage-associated inflammatory cytokines. Based on these results, we hypothesized that IL-1Ra administered after injury and closer to peak inflammation (as would occur clinically), would more effectively decrease inflammation and thereby improve healing. Since IL-1Ra has a short half-life, we also investigated the effect of multiple injections. The objective of this study was to …


The Influence Of Partial And Full Thickness Tears On Infraspinatus Tendon Strain Patterns, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby Jan 2014

The Influence Of Partial And Full Thickness Tears On Infraspinatus Tendon Strain Patterns, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Tears on the bursal and articular sides of the rotator cuff tendons are known to behave differently and strain is thought to play a role in this difference. This study investigates the effect of tear location on the changes in three strain measurements (grip-to-grip, insertion, and mid-substance tissue) in a sheep infraspinatus tendon model during axial loading. We introduced a 14mm wide defect near the insertion from either the articular or bursal side of the tendon to three depths (3 mm, 7mm & full) progressively. For each condition, tendons were sinusoidally stretched (4% at 0.5 Hz) while insertion and midsubstance …


Interleukin Expression After Injury And The Effects Of Interleukin-1 Receptor Antagonist, Connie S. Chamberlain, Ellen M. Leiferman, Kayt E. Frisch, Stacey L. Brickson, William L. Murphy, Geoffrey S. Baer Aug 2013

Interleukin Expression After Injury And The Effects Of Interleukin-1 Receptor Antagonist, Connie S. Chamberlain, Ellen M. Leiferman, Kayt E. Frisch, Stacey L. Brickson, William L. Murphy, Geoffrey S. Baer

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Ligament and tendon repair involves a complex series of coordinated events orchestrated by various cell types, cytokines and other factors. The repair process extends months to years and results in scar tissue mechanically inferior to native tissue. This is in clear contrast to tissue "regeneration" which would recapitulate the native tissue. Numerous approaches to stimulate a regenerative scenario have been attempted, including tissue-engineering, non-steroidal anti-inflammatories, ultrasonic, or electrical stimulation, but none have resulted in complete regeneration. In pursuit of a more regenerative outcome, it is important to understand the fundamentals of the normal healing process. Previous work from our lab …


Quantification Of Collagen Organization Using Fractal Dimensions And Fourier Transforms, Kayt E. Frisch, Sarah E. Duenwald-Kuehl, Hirohito Kobayashi, Connie S. Chamberlain, Roderic S. Lakes, Ray Vanderby Jr. Jan 2012

Quantification Of Collagen Organization Using Fractal Dimensions And Fourier Transforms, Kayt E. Frisch, Sarah E. Duenwald-Kuehl, Hirohito Kobayashi, Connie S. Chamberlain, Roderic S. Lakes, Ray Vanderby Jr.

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Collagen fibers and fibrils that comprise tendons and ligaments are disrupted or damaged during injury. Fibrillogenesis during healing produces a matrix that is initially quite disorganized, but remodels over time to resemble, but not replicate, the original roughly parallel microstructure. Quantification of these changes is traditionally a laborious and subjective task. In this work we applied two automated techniques, fast Fourier transformation (FFT) and fractal dimension analysis (FA) to quantify the organization of collagen fibers or fibrils. Using multi-photon images of collagen fibers obtained from rat ligament we showed that for healing ligaments, FA differentiates more clearly between the different …